HBSIP: A SIP-based mobility management for seamless handover

In the next generation mobile network, real-time multimedia applications need better network performance, such as lower handoff delay and packet loss rate. This paper proposes a new protocol named HBSIP, which is hierarchical bicasing based SIP. HBSIP is an improvement to the traditional mobile SIP, and the core idea is using the bicasting mechanism and hierarchical structure. Although HBSIP brings about additional network traffic load, in return it significantly enhances the network performance, including reducing handoff delay and packet loss rate. Due to the characters and performance of HBSIP, it is very suitable for the future seamless communication.